﻿using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace NineMine.Core
{
    public static class MimeType
    {
        public static string MimeTypeOf(this FileInfo input)
        {
            if (input == null)
                return null;
            else
            {
                var ext = input.Extension;
                if (!ext.StartsWith("."))
                    ext = "." + ext;
                var result = "application/octet-stream";
                mappings.TryGetValue(ext.ToLower(), out result);
                return result;
            }
        }

        public static string MimeTypeOf(this string input)
        {
            if (input == null)
                return null;
            else
            {
                var ext = Path.GetExtension(input);
                if (!ext.StartsWith("."))
                    ext = "." + ext;
                var result = "application/octet-stream";
                mappings.TryGetValue(ext.ToLower(), out result);
                return result;
            }
        }

        public static string MainMimeTypeOf(this string input)
        {
            var mimeType = MimeTypeOf(input);
            if (mimeType == null)
                return null;
            var parts = mimeType.Split('/');
            return parts[0];
        }

        public static string CssClassOf(this string input)
        {
            var mimeType = MimeTypeOf(input);
            if (mimeType == null)
                return null;
            return mimeType.Replace('/', '-');
        }

        public static bool IsMimeTypeOf(this string input, string mainMimeType)
        {
            var check = MainMimeTypeOf(input);
            return string.Equals(mainMimeType, check, StringComparison.InvariantCultureIgnoreCase);
        }

        //TODO: make this loadable from a configration source.
        private static readonly IDictionary<string, string> mappings = new Dictionary<string, string>(StringComparer.InvariantCultureIgnoreCase)
        {
            { ".323", "text/h323" },
            { ".3g2", "video/3gpp2" },
            { ".3gp", "video/3gpp" },
            { ".3gp2", "video/3gpp2" },
            { ".3gpp", "video/3gpp" },
            { ".7z", "application/x-7z-compressed" },
            { ".aa", "audio/audible" },
            { ".AAC", "audio/aac" },
            { ".aaf", "application/octet-stream" },
            { ".aax", "audio/vnd.audible.aax" },
            { ".ac3", "audio/ac3" },
            { ".aca", "application/octet-stream" },
            { ".accda", "application/msaccess.addin" },
            { ".accdb", "application/msaccess" },
            { ".accdc", "application/msaccess.cab" },
            { ".accde", "application/msaccess" },
            { ".accdr", "application/msaccess.runtime" },
            { ".accdt", "application/msaccess" },
            { ".accdw", "application/msaccess.webapplication" },
            { ".accft", "application/msaccess.ftemplate" },
            { ".acx", "application/internet-property-stream" },
            { ".AddIn", "text/xml" },
            { ".ade", "application/msaccess" },
            { ".adobebridge", "application/x-bridge-url" },
            { ".adp", "application/msaccess" },
            { ".ADT", "audio/vnd.dlna.adts" },
            { ".ADTS", "audio/aac" },
            { ".afm", "application/octet-stream" },
            { ".ai", "application/postscript" },
            { ".aif", "audio/x-aiff" },
            { ".aifc", "audio/aiff" },
            { ".aiff", "audio/aiff" },
            { ".air", "application/vnd.adobe.air-application-installer-package+zip" },
            { ".amc", "application/x-mpeg" },
            { ".application", "application/x-ms-application" },
            { ".art", "image/x-jg" },
            { ".asa", "application/xml" },
            { ".asax", "application/xml" },
            { ".ascx", "application/xml" },
            { ".asd", "application/octet-stream" },
            { ".asf", "video/x-ms-asf" },
            { ".ashx", "application/xml" },
            { ".asi", "application/octet-stream" },
            { ".asm", "text/plain" },
            { ".asmx", "application/xml" },
            { ".aspx", "application/xml" },
            { ".asr", "video/x-ms-asf" },
            { ".asx", "video/x-ms-asf" },
            { ".atom", "application/atom+xml" },
            { ".au", "audio/basic" },
            { ".avi", "video/x-msvideo" },
            { ".axs", "application/olescript" },
            { ".bas", "text/plain" },
            { ".bcpio", "application/x-bcpio" },
            { ".bin", "application/octet-stream" },
            { ".bmp", "image/bmp" },
            { ".c", "text/plain" },
            { ".cab", "application/octet-stream" },
            { ".caf", "audio/x-caf" },
            { ".calx", "application/vnd.ms-office.calx" },
            { ".cat", "application/vnd.ms-pki.seccat" },
            { ".cc", "text/plain" },
            { ".cd", "text/plain" },
            { ".cdda", "audio/aiff" },
            { ".cdf", "application/x-cdf" },
            { ".cer", "application/x-x509-ca-cert" },
            { ".chm", "application/octet-stream" },
            { ".class", "application/x-java-applet" },
            { ".clp", "application/x-msclip" },
            { ".cmx", "image/x-cmx" },
            { ".cnf", "text/plain" },
            { ".cod", "image/cis-cod" },
            { ".config", "application/xml" },
            { ".contact", "text/x-ms-contact" },
            { ".coverage", "application/xml" },
            { ".cpio", "application/x-cpio" },
            { ".cpp", "text/plain" },
            { ".crd", "application/x-mscardfile" },
            { ".crl", "application/pkix-crl" },
            { ".crt", "application/x-x509-ca-cert" },
            { ".cs", "text/plain" },
            { ".csdproj", "text/plain" },
            { ".csh", "application/x-csh" },
            { ".csproj", "text/plain" },
            { ".css", "text/css" },
            { ".csv", "application/octet-stream" },
            { ".cur", "application/octet-stream" },
            { ".cxx", "text/plain" },
            { ".dat", "application/octet-stream" },
            { ".datasource", "application/xml" },
            { ".dbproj", "text/plain" },
            { ".dcr", "application/x-director" },
            { ".def", "text/plain" },
            { ".deploy", "application/octet-stream" },
            { ".der", "application/x-x509-ca-cert" },
            { ".dgml", "application/xml" },
            { ".dib", "image/bmp" },
            { ".dif", "video/x-dv" },
            { ".dir", "application/x-director" },
            { ".disco", "text/xml" },
            { ".dll", "application/x-msdownload" },
            { ".dll.config", "text/xml" },
            { ".dlm", "text/dlm" },
            { ".doc", "application/msword" },
            { ".docm", "application/vnd.ms-word.document.macroEnabled.12" },
            { ".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document" },
            { ".dot", "application/msword" },
            { ".dotm", "application/vnd.ms-word.template.macroEnabled.12" },
            { ".dotx", "application/vnd.openxmlformats-officedocument.wordprocessingml.template" },
            { ".dsp", "application/octet-stream" },
            { ".dsw", "text/plain" },
            { ".dtd", "text/xml" },
            { ".dtsConfig", "text/xml" },
            { ".dv", "video/x-dv" },
            { ".dvi", "application/x-dvi" },
            { ".dwf", "drawing/x-dwf" },
            { ".dwp", "application/octet-stream" },
            { ".dxr", "application/x-director" },
            { ".eml", "message/rfc822" },
            { ".emz", "application/octet-stream" },
            { ".eot", "application/octet-stream" },
            { ".eps", "application/postscript" },
            { ".etl", "application/etl" },
            { ".etx", "text/x-setext" },
            { ".evy", "application/envoy" },
            { ".exe", "application/octet-stream" },
            { ".exe.config", "text/xml" },
            { ".fdf", "application/vnd.fdf" },
            { ".fif", "application/fractals" },
            { ".filters", "Application/xml" },
            { ".fla", "application/octet-stream" },
            { ".flr", "x-world/x-vrml" },
            { ".flv", "video/x-flv" },
            { ".fsscript", "application/fsharp-script" },
            { ".fsx", "application/fsharp-script" },
            { ".generictest", "application/xml" },
            { ".gif", "image/gif" },
            { ".group", "text/x-ms-group" },
            { ".gsm", "audio/x-gsm" },
            { ".gtar", "application/x-gtar" },
            { ".gz", "application/x-gzip" },
            { ".h", "text/plain" },
            { ".hdf", "application/x-hdf" },
            { ".hdml", "text/x-hdml" },
            { ".hhc", "application/x-oleobject" },
            { ".hhk", "application/octet-stream" },
            { ".hhp", "application/octet-stream" },
            { ".hlp", "application/winhlp" },
            { ".hpp", "text/plain" },
            { ".hqx", "application/mac-binhex40" },
            { ".hta", "application/hta" },
            { ".htc", "text/x-component" },
            { ".htm", "text/html" },
            { ".html", "text/html" },
            { ".htt", "text/webviewhtml" },
            { ".hxa", "application/xml" },
            { ".hxc", "application/xml" },
            { ".hxd", "application/octet-stream" },
            { ".hxe", "application/xml" },
            { ".hxf", "application/xml" },
            { ".hxh", "application/octet-stream" },
            { ".hxi", "application/octet-stream" },
            { ".hxk", "application/xml" },
            { ".hxq", "application/octet-stream" },
            { ".hxr", "application/octet-stream" },
            { ".hxs", "application/octet-stream" },
            { ".hxt", "text/html" },
            { ".hxv", "application/xml" },
            { ".hxw", "application/octet-stream" },
            { ".hxx", "text/plain" },
            { ".i", "text/plain" },
            { ".ico", "image/x-icon" },
            { ".ics", "application/octet-stream" },
            { ".idl", "text/plain" },
            { ".ief", "image/ief" },
            { ".iii", "application/x-iphone" },
            { ".inc", "text/plain" },
            { ".inf", "application/octet-stream" },
            { ".inl", "text/plain" },
            { ".ins", "application/x-internet-signup" },
            { ".ipa", "application/x-itunes-ipa" },
            { ".ipg", "application/x-itunes-ipg" },
            { ".ipproj", "text/plain" },
            { ".ipsw", "application/x-itunes-ipsw" },
            { ".iqy", "text/x-ms-iqy" },
            { ".isp", "application/x-internet-signup" },
            { ".ite", "application/x-itunes-ite" },
            { ".itlp", "application/x-itunes-itlp" },
            { ".itms", "application/x-itunes-itms" },
            { ".itpc", "application/x-itunes-itpc" },
            { ".IVF", "video/x-ivf" },
            { ".jar", "application/java-archive" },
            { ".java", "application/octet-stream" },
            { ".jck", "application/liquidmotion" },
            { ".jcz", "application/liquidmotion" },
            { ".jfif", "image/pjpeg" },
            { ".jnlp", "application/x-java-jnlp-file" },
            { ".jpb", "application/octet-stream" },
            { ".jpe", "image/jpeg" },
            { ".jpeg", "image/jpeg" },
            { ".jpg", "image/jpeg" },
            { ".js", "application/x-javascript" },
            { ".jsx", "text/jscript" },
            { ".jsxbin", "text/plain" },
            { ".latex", "application/x-latex" },
            { ".library-ms", "application/windows-library+xml" },
            { ".lit", "application/x-ms-reader" },
            { ".loadtest", "application/xml" },
            { ".lpk", "application/octet-stream" },
            { ".lsf", "video/x-la-asf" },
            { ".lst", "text/plain" },
            { ".lsx", "video/x-la-asf" },
            { ".lzh", "application/octet-stream" },
            { ".m13", "application/x-msmediaview" },
            { ".m14", "application/x-msmediaview" },
            { ".m1v", "video/mpeg" },
            { ".m2t", "video/vnd.dlna.mpeg-tts" },
            { ".m2ts", "video/vnd.dlna.mpeg-tts" },
            { ".m2v", "video/mpeg" },
            { ".m3u", "audio/x-mpegurl" },
            { ".m3u8", "audio/x-mpegurl" },
            { ".m4a", "audio/m4a" },
            { ".m4b", "audio/m4b" },
            { ".m4p", "audio/m4p" },
            { ".m4r", "audio/x-m4r" },
            { ".m4v", "video/x-m4v" },
            { ".mac", "image/x-macpaint" },
            { ".mak", "text/plain" },
            { ".man", "application/x-troff-man" },
            { ".manifest", "application/x-ms-manifest" },
            { ".map", "text/plain" },
            { ".master", "application/xml" },
            { ".mda", "application/msaccess" },
            { ".mdb", "application/x-msaccess" },
            { ".mde", "application/msaccess" },
            { ".mdp", "application/octet-stream" },
            { ".me", "application/x-troff-me" },
            { ".mfp", "application/x-shockwave-flash" },
            { ".mht", "message/rfc822" },
            { ".mhtml", "message/rfc822" },
            { ".mid", "audio/mid" },
            { ".midi", "audio/mid" },
            { ".mix", "application/octet-stream" },
            { ".mk", "text/plain" },
            { ".mmf", "application/x-smaf" },
            { ".mno", "text/xml" },
            { ".mny", "application/x-msmoney" },
            { ".mod", "video/mpeg" },
            { ".mov", "video/quicktime" },
            { ".movie", "video/x-sgi-movie" },
            { ".mp2", "video/mpeg" },
            { ".mp2v", "video/mpeg" },
            { ".mp3", "audio/mpeg" },
            { ".mp4", "video/mp4" },
            { ".mp4v", "video/mp4" },
            { ".mpa", "video/mpeg" },
            { ".mpe", "video/mpeg" },
            { ".mpeg", "video/mpeg" },
            { ".mpf", "application/vnd.ms-mediapackage" },
            { ".mpg", "video/mpeg" },
            { ".mpp", "application/vnd.ms-project" },
            { ".mpv2", "video/mpeg" },
            { ".mqv", "video/quicktime" },
            { ".ms", "application/x-troff-ms" },
            { ".msi", "application/octet-stream" },
            { ".mso", "application/octet-stream" },
            { ".mts", "video/vnd.dlna.mpeg-tts" },
            { ".mtx", "application/xml" },
            { ".mvb", "application/x-msmediaview" },
            { ".mvc", "application/x-miva-compiled" },
            { ".mxp", "application/x-mmxp" },
            { ".nc", "application/x-netcdf" },
            { ".nsc", "video/x-ms-asf" },
            { ".nws", "message/rfc822" },
            { ".ocx", "application/octet-stream" },
            { ".oda", "application/oda" },
            { ".odc", "text/x-ms-odc" },
            { ".odh", "text/plain" },
            { ".odl", "text/plain" },
            { ".odp", "application/vnd.oasis.opendocument.presentation" },
            { ".ods", "application/oleobject" },
            { ".odt", "application/vnd.oasis.opendocument.text" },
            { ".one", "application/onenote" },
            { ".onea", "application/onenote" },
            { ".onepkg", "application/onenote" },
            { ".onetmp", "application/onenote" },
            { ".onetoc", "application/onenote" },
            { ".onetoc2", "application/onenote" },
            { ".orderedtest", "application/xml" },
            { ".osdx", "application/opensearchdescription+xml" },
            { ".p10", "application/pkcs10" },
            { ".p12", "application/x-pkcs12" },
            { ".p7b", "application/x-pkcs7-certificates" },
            { ".p7c", "application/pkcs7-mime" },
            { ".p7m", "application/pkcs7-mime" },
            { ".p7r", "application/x-pkcs7-certreqresp" },
            { ".p7s", "application/pkcs7-signature" },
            { ".pbm", "image/x-portable-bitmap" },
            { ".pcast", "application/x-podcast" },
            { ".pct", "image/pict" },
            { ".pcx", "application/octet-stream" },
            { ".pcz", "application/octet-stream" },
            { ".pdf", "application/pdf" },
            { ".pfb", "application/octet-stream" },
            { ".pfm", "application/octet-stream" },
            { ".pfx", "application/x-pkcs12" },
            { ".pgm", "image/x-portable-graymap" },
            { ".pic", "image/pict" },
            { ".pict", "image/pict" },
            { ".pkgdef", "text/plain" },
            { ".pkgundef", "text/plain" },
            { ".pko", "application/vnd.ms-pki.pko" },
            { ".pls", "audio/scpls" },
            { ".pma", "application/x-perfmon" },
            { ".pmc", "application/x-perfmon" },
            { ".pml", "application/x-perfmon" },
            { ".pmr", "application/x-perfmon" },
            { ".pmw", "application/x-perfmon" },
            { ".png", "image/png" },
            { ".pnm", "image/x-portable-anymap" },
            { ".pnt", "image/x-macpaint" },
            { ".pntg", "image/x-macpaint" },
            { ".pnz", "image/png" },
            { ".pot", "application/vnd.ms-powerpoint" },
            { ".potm", "application/vnd.ms-powerpoint.template.macroEnabled.12" },
            { ".potx", "application/vnd.openxmlformats-officedocument.presentationml.template" },
            { ".ppa", "application/vnd.ms-powerpoint" },
            { ".ppam", "application/vnd.ms-powerpoint.addin.macroEnabled.12" },
            { ".ppm", "image/x-portable-pixmap" },
            { ".pps", "application/vnd.ms-powerpoint" },
            { ".ppsm", "application/vnd.ms-powerpoint.slideshow.macroEnabled.12" },
            { ".ppsx", "application/vnd.openxmlformats-officedocument.presentationml.slideshow" },
            { ".ppt", "application/vnd.ms-powerpoint" },
            { ".pptm", "application/vnd.ms-powerpoint.presentation.macroEnabled.12" },
            { ".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation" },
            { ".prf", "application/pics-rules" },
            { ".prm", "application/octet-stream" },
            { ".prx", "application/octet-stream" },
            { ".ps", "application/postscript" },
            { ".psc1", "application/PowerShell" },
            { ".psd", "application/octet-stream" },
            { ".psess", "application/xml" },
            { ".psm", "application/octet-stream" },
            { ".psp", "application/octet-stream" },
            { ".pub", "application/x-mspublisher" },
            { ".pwz", "application/vnd.ms-powerpoint" },
            { ".qht", "text/x-html-insertion" },
            { ".qhtm", "text/x-html-insertion" },
            { ".qt", "video/quicktime" },
            { ".qti", "image/x-quicktime" },
            { ".qtif", "image/x-quicktime" },
            { ".qtl", "application/x-quicktimeplayer" },
            { ".qxd", "application/octet-stream" },
            { ".ra", "audio/x-pn-realaudio" },
            { ".ram", "audio/x-pn-realaudio" },
            { ".rar", "application/octet-stream" },
            { ".ras", "image/x-cmu-raster" },
            { ".rat", "application/rat-file" },
            { ".rc", "text/plain" },
            { ".rc2", "text/plain" },
            { ".rct", "text/plain" },
            { ".rdlc", "application/xml" },
            { ".resx", "application/xml" },
            { ".rf", "image/vnd.rn-realflash" },
            { ".rgb", "image/x-rgb" },
            { ".rgs", "text/plain" },
            { ".rm", "application/vnd.rn-realmedia" },
            { ".rmi", "audio/mid" },
            { ".rmp", "application/vnd.rn-rn_music_package" },
            { ".roff", "application/x-troff" },
            { ".rpm", "audio/x-pn-realaudio-plugin" },
            { ".rqy", "text/x-ms-rqy" },
            { ".rtf", "application/rtf" },
            { ".rtx", "text/richtext" },
            { ".ruleset", "application/xml" },
            { ".s", "text/plain" },
            { ".safariextz", "application/x-safari-safariextz" },
            { ".scd", "application/x-msschedule" },
            { ".sct", "text/scriptlet" },
            { ".sd2", "audio/x-sd2" },
            { ".sdp", "application/sdp" },
            { ".sea", "application/octet-stream" },
            { ".searchConnector-ms", "application/windows-search-connector+xml" },
            { ".setpay", "application/set-payment-initiation" },
            { ".setreg", "application/set-registration-initiation" },
            { ".settings", "application/xml" },
            { ".sgimb", "application/x-sgimb" },
            { ".sgml", "text/sgml" },
            { ".sh", "application/x-sh" },
            { ".shar", "application/x-shar" },
            { ".shtml", "text/html" },
            { ".sit", "application/x-stuffit" },
            { ".sitemap", "application/xml" },
            { ".skin", "application/xml" },
            { ".sldm", "application/vnd.ms-powerpoint.slide.macroEnabled.12" },
            { ".sldx", "application/vnd.openxmlformats-officedocument.presentationml.slide" },
            { ".slk", "application/vnd.ms-excel" },
            { ".sln", "text/plain" },
            { ".slupkg-ms", "application/x-ms-license" },
            { ".smd", "audio/x-smd" },
            { ".smi", "application/octet-stream" },
            { ".smx", "audio/x-smd" },
            { ".smz", "audio/x-smd" },
            { ".snd", "audio/basic" },
            { ".snippet", "application/xml" },
            { ".snp", "application/octet-stream" },
            { ".sol", "text/plain" },
            { ".sor", "text/plain" },
            { ".spc", "application/x-pkcs7-certificates" },
            { ".spl", "application/futuresplash" },
            { ".src", "application/x-wais-source" },
            { ".srf", "text/plain" },
            { ".SSISDeploymentManifest", "text/xml" },
            { ".ssm", "application/streamingmedia" },
            { ".sst", "application/vnd.ms-pki.certstore" },
            { ".stl", "application/vnd.ms-pki.stl" },
            { ".sv4cpio", "application/x-sv4cpio" },
            { ".sv4crc", "application/x-sv4crc" },
            { ".svc", "application/xml" },
            { ".swf", "application/x-shockwave-flash" },
            { ".t", "application/x-troff" },
            { ".tar", "application/x-tar" },
            { ".tcl", "application/x-tcl" },
            { ".testrunconfig", "application/xml" },
            { ".testsettings", "application/xml" },
            { ".tex", "application/x-tex" },
            { ".texi", "application/x-texinfo" },
            { ".texinfo", "application/x-texinfo" },
            { ".tgz", "application/x-compressed" },
            { ".thmx", "application/vnd.ms-officetheme" },
            { ".thn", "application/octet-stream" },
            { ".tif", "image/tiff" },
            { ".tiff", "image/tiff" },
            { ".tlh", "text/plain" },
            { ".tli", "text/plain" },
            { ".toc", "application/octet-stream" },
            { ".tr", "application/x-troff" },
            { ".trm", "application/x-msterminal" },
            { ".trx", "application/xml" },
            { ".ts", "video/vnd.dlna.mpeg-tts" },
            { ".tsv", "text/tab-separated-values" },
            { ".ttf", "application/octet-stream" },
            { ".tts", "video/vnd.dlna.mpeg-tts" },
            { ".txt", "text/plain" },
            { ".u32", "application/octet-stream" },
            { ".uls", "text/iuls" },
            { ".user", "text/plain" },
            { ".ustar", "application/x-ustar" },
            { ".vb", "text/plain" },
            { ".vbdproj", "text/plain" },
            { ".vbk", "video/mpeg" },
            { ".vbproj", "text/plain" },
            { ".vbs", "text/vbscript" },
            { ".vcf", "text/x-vcard" },
            { ".vcproj", "Application/xml" },
            { ".vcs", "text/plain" },
            { ".vcxproj", "Application/xml" },
            { ".vddproj", "text/plain" },
            { ".vdp", "text/plain" },
            { ".vdproj", "text/plain" },
            { ".vdx", "application/vnd.ms-visio.viewer" },
            { ".vml", "text/xml" },
            { ".vscontent", "application/xml" },
            { ".vsct", "text/xml" },
            { ".vsd", "application/vnd.visio" },
            { ".vsi", "application/ms-vsi" },
            { ".vsix", "application/vsix" },
            { ".vsixlangpack", "text/xml" },
            { ".vsixmanifest", "text/xml" },
            { ".vsmdi", "application/xml" },
            { ".vspscc", "text/plain" },
            { ".vss", "application/vnd.visio" },
            { ".vsscc", "text/plain" },
            { ".vssettings", "text/xml" },
            { ".vssscc", "text/plain" },
            { ".vst", "application/vnd.visio" },
            { ".vstemplate", "text/xml" },
            { ".vsto", "application/x-ms-vsto" },
            { ".vsw", "application/vnd.visio" },
            { ".vsx", "application/vnd.visio" },
            { ".vtx", "application/vnd.visio" },
            { ".wav", "audio/wav" },
            { ".wave", "audio/wav" },
            { ".wax", "audio/x-ms-wax" },
            { ".wbk", "application/msword" },
            { ".wbmp", "image/vnd.wap.wbmp" },
            { ".wcm", "application/vnd.ms-works" },
            { ".wdb", "application/vnd.ms-works" },
            { ".wdp", "image/vnd.ms-photo" },
            { ".webarchive", "application/x-safari-webarchive" },
            { ".webtest", "application/xml" },
            { ".wiq", "application/xml" },
            { ".wiz", "application/msword" },
            { ".wks", "application/vnd.ms-works" },
            { ".WLMP", "application/wlmoviemaker" },
            { ".wlpginstall", "application/x-wlpg-detect" },
            { ".wlpginstall3", "application/x-wlpg3-detect" },
            { ".wm", "video/x-ms-wm" },
            { ".wma", "audio/x-ms-wma" },
            { ".wmd", "application/x-ms-wmd" },
            { ".wmf", "application/x-msmetafile" },
            { ".wml", "text/vnd.wap.wml" },
            { ".wmlc", "application/vnd.wap.wmlc" },
            { ".wmls", "text/vnd.wap.wmlscript" },
            { ".wmlsc", "application/vnd.wap.wmlscriptc" },
            { ".wmp", "video/x-ms-wmp" },
            { ".wmv", "video/x-ms-wmv" },
            { ".wmx", "video/x-ms-wmx" },
            { ".wmz", "application/x-ms-wmz" },
            { ".wpl", "application/vnd.ms-wpl" },
            { ".wps", "application/vnd.ms-works" },
            { ".wri", "application/x-mswrite" },
            { ".wrl", "x-world/x-vrml" },
            { ".wrz", "x-world/x-vrml" },
            { ".wsc", "text/scriptlet" },
            { ".wsdl", "text/xml" },
            { ".wvx", "video/x-ms-wvx" },
            { ".x", "application/directx" },
            { ".xaf", "x-world/x-vrml" },
            { ".xaml", "application/xaml+xml" },
            { ".xap", "application/x-silverlight-app" },
            { ".xbap", "application/x-ms-xbap" },
            { ".xbm", "image/x-xbitmap" },
            { ".xdr", "text/plain" },
            { ".xht", "application/xhtml+xml" },
            { ".xhtml", "application/xhtml+xml" },
            { ".xla", "application/vnd.ms-excel" },
            { ".xlam", "application/vnd.ms-excel.addin.macroEnabled.12" },
            { ".xlc", "application/vnd.ms-excel" },
            { ".xld", "application/vnd.ms-excel" },
            { ".xlk", "application/vnd.ms-excel" },
            { ".xll", "application/vnd.ms-excel" },
            { ".xlm", "application/vnd.ms-excel" },
            { ".xls", "application/vnd.ms-excel" },
            { ".xlsb", "application/vnd.ms-excel.sheet.binary.macroEnabled.12" },
            { ".xlsm", "application/vnd.ms-excel.sheet.macroEnabled.12" },
            { ".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" },
            { ".xlt", "application/vnd.ms-excel" },
            { ".xltm", "application/vnd.ms-excel.template.macroEnabled.12" },
            { ".xltx", "application/vnd.openxmlformats-officedocument.spreadsheetml.template" },
            { ".xlw", "application/vnd.ms-excel" },
            { ".xml", "text/xml" },
            { ".xmta", "application/xml" },
            { ".xof", "x-world/x-vrml" },
            { ".XOML", "text/plain" },
            { ".xpm", "image/x-xpixmap" },
            { ".xps", "application/vnd.ms-xpsdocument" },
            { ".xrm-ms", "text/xml" },
            { ".xsc", "application/xml" },
            { ".xsd", "text/xml" },
            { ".xsf", "text/xml" },
            { ".xsl", "text/xml" },
            { ".xslt", "text/xml" },
            { ".xsn", "application/octet-stream" },
            { ".xss", "application/xml" },
            { ".xtp", "application/octet-stream" },
            { ".xwd", "image/x-xwindowdump" },
            { ".z", "application/x-compress" },
            { ".zip", "application/x-zip-compressed" }
        };
    }
}
//TODO: add or combine these mappings
/*
   'text/plain' => 'txt,tpl,properties,patch,diff,ini,readme,install,upgrade',
      'text/css' => 'css',
      'text/html' => 'html,htm,xhtml',
      'text/jsp' => 'jsp',
      'text/x-c' => 'c,cpp,cc,h,hh',
      'text/x-csharp' => 'cs',
      'text/x-java' => 'java',
      'text/x-html-template' => 'rhtml',
      'text/x-perl' => 'pl,pm',
      'text/x-php' => 'php,php3,php4,php5',
      'text/x-python' => 'py',
      'text/x-ruby' => 'rb,rbw,ruby,rake,erb',
      'text/x-csh' => 'csh',
      'text/x-sh' => 'sh',
      'text/xml' => 'xml,xsd,mxml',
      'text/yaml' => 'yml,yaml',
      'text/csv' => 'csv',
      'text/x-po' => 'po',
      'image/gif' => 'gif',
      'image/jpeg' => 'jpg,jpeg,jpe',
      'image/png' => 'png',
      'image/tiff' => 'tiff,tif',
      'image/x-ms-bmp' => 'bmp',
      'image/x-xpixmap' => 'xpm',
      'image/svg+xml'=> 'svg',
      'application/javascript' => 'js',
      'application/pdf' => 'pdf',
      'application/rtf' => 'rtf',
      'application/msword' => 'doc',
      'application/vnd.ms-excel' => 'xls',
      'application/vnd.ms-powerpoint' => 'ppt,pps',
      'application/vnd.openxmlformats-officedocument.wordprocessingml.document' => 'docx',
      'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => 'xlsx',
      'application/vnd.openxmlformats-officedocument.presentationml.presentation' => 'pptx',
      'application/vnd.openxmlformats-officedocument.presentationml.slideshow' => 'ppsx',
      'application/vnd.oasis.opendocument.spreadsheet' => 'ods',
      'application/vnd.oasis.opendocument.text' => 'odt',
      'application/vnd.oasis.opendocument.presentation' => 'odp',
      'application/x-7z-compressed' => '7z',
      'application/x-rar-compressed' => 'rar',
      'application/x-tar' => 'tar',
      'application/zip' => 'zip',
      'application/x-gzip' => 'gz',
 */